Writer Cary Bates reveals the untold story of how super villain Kanjar Ro nearly destroyed life as we know it when he set out to conquer Earth – Earth- Prime, that is. It's up to the Justice League, Adam Strange and a very special DC legend to save the 1970s!Plus: Following the 26-page lead story is a classic tale originally published in the '70s, also written by Cary Bates!